Skip to main content
SpringerLink
Log in

Stress evolution law and failure characteristics of mining floor rock mass above confined water

  • Geotechnical Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope Submit manuscript

Abstract

The discussion of stress evolution law and failure characteristics of rock mass in mining floor above confined water is the key to control the floor water inrush in deep mining. Based on analyzing the strike support pressure of working face, the mechanical model of coal floor above the confined water was established. Then, vertical, horizontal and shear stress distribution maps and the failure range morphological map of mining floor were calculated based on data processing software Origin. Then, with the similar simulation test bed for water inrush from coal seam floor, the fluid solid coupling simulation material was selected, and the stress evolution law and failure characteristics of coal seam mining floor were improved. The results showed that the vertical stress contour is a “semi-elliptical” shape distribution and the greater the floor depth, the smaller the affected degree, but the influenced range increased. The higher shear stress zone occurred in the vicinity of working face coal wall. The failure range morphological map of mining floor was approximately a spoon shape and maximum failure depth was 14.0 m based on the mechanical theory. The maximum failure depth of the floor was 13.4 m based on the similar simulation experiment. So, the experimental results are in agreement with the theoretical results. The results in this paper can provide theory basis for safety mining above confined water.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Boussinesq, J. V. (1885). Applications of the potentials to study of the equilibrium and of the move for the elastic solides, GaUthiers Villars, Paris.

    Google Scholar 

  • Feng, M. M., Mao, X. B., Bai, H. B., and Wang P. (2009). “Experimental research on fracture evolution law of water-resisting strata in coal seam floor above aquifer.” Chin J Rock Mech Eng, Vol. 28, No. 2, pp. 336–341, DOI: 10.3321/j.issn:1000-6915.2009.02.017.

    Google Scholar 

  • Gui, H. R. and Lin, M. L. (2016). “Types of water hazards in China coalmines and regional characteristics.” Nat Hazards, Vol. 84, pp. 1501–1512, DOI: 10.1007/s11069-016-2488-5.

    Article  Google Scholar 

  • Hu, Y. Q., Yan, G. C., and Shi, X. W. (2008). “Study on physics and numerical simulation of water inrush prediction theory for coal mining above confined aquifer.” Chin J Rock Mech Eng, Vol. 27, No. 1, pp. 9–15, DOI: 10.3321/j.issn:1000-6915.2008.01.002.

    Google Scholar 

  • Jiang, Y. D., Lv, Y. K., Zhao, Y. X., and Zhang, Y. (2011). “Similar simulation test for breakage law of working face floor in coal mining above aquifer.” Chin J Rock Mech Eng., Vol. 30, No. 8, pp. 1571–1579.

    Google Scholar 

  • Jiang, Z. H. (2011).”Numerical analysis of the destruction of waterresisting strata in a coal seam floorin mining above aquifers.” Mining Science and Technology(China), Vol. 21, pp. 537–541, DOI: 10.1016/j.mstc.2011.06.013.

    Google Scholar 

  • Li, S. C., Feng, X. D., and Li, S. C. (2010). “Research and development of a new similar material for solid-fluid coupling and its application.” Chin J Rock Mech Eng., Vol. 29, No. 2, pp. 281–288.

    Google Scholar 

  • Li, S. C., Zhou, Y., and Li, L. P. (2012). “Development and application of a new similar material for underground engineering fluid-solid coupling model test.” Chin J Rock Mech Eng., Vol. 31, No. 6, pp. 1128–1137, DOI: 10.3969/j.issn.1000-6915.2012.06.006.

    Google Scholar 

  • Liu, X., Sheng, Q., and Chen, J. (2015). “Seismic shaking table test for large-scale underground cavern group (I): Proportioning test on similar materials of surrounding rock.” Rock and Soil Mechanics, Vol. 36, No. 1, pp. 83–88, DOI: 10.16285/j.rsm.2015.01.011.

    Google Scholar 

  • Lu, Y. L. and Wang, L. G. (2015). “Numerical simulation of mininginduced fracture evolution and water flow in coal seam floor above a confined aquifer.” Computers and Geotechnics, Vol. 67, pp. 157–171.

    Article  Google Scholar 

  • Luo, L. P. and Peng, S. P. (2005). “Mechanism study on water-inrush hazard of floor strata in mining on confined aquifer.” J China Coal Soc, Vol. 30, No. 4, pp. 439–462, DOI: 10.3321/j.issn:0253-9993.2005.04.012.

    Google Scholar 

  • Meng, X. R., Xu, C. H., and Gao, Z. N. (2010). “Stress distribution and damage mechanism of mining floor.” J. China Coal Soc, Vol. 35, No. 11, pp. 1832–1836.

    Google Scholar 

  • Pang, Y. H., Wang, G. F., and Ding, Z. W. (2014). “Mechanical model of water inrush from coal seam floor based on triaxial seepage experiments.” Int. J. Coal Sci. Technol., Vol. 1, No. 4, pp. 428–433, DOI: 10.1007/s40789-014-0049-7.

    Article  Google Scholar 

  • Si, R. J., Wang, C. Q., and Tan, Y. L. (2007). “Numerical simulation of abutment pressure distribution laws of working face.” Rock and Soil Mechanics, Vol.28, No. 2, pp. 351–354, DOI: 10.3969/j.issn.1000-7598.2007.02.028.

    Google Scholar 

  • Sun, J., Wang, L. G., and Tang, F. R. (2011). “Micro-seismic monitoring failure characteristics of inclined coal seam floor.” Rock and Soil Mechanics, Vol. 32, No. 5, pp. 1589–1595, DOI: 10.3969/j.issn. 1000-7598.2011.05.046.

    Google Scholar 

  • Sun, W. B. (2013). Experimental study on the formation and evolution of water inrush channel in deep mining, PhD Dissertation, Shandong University of Science and Technology.

    Google Scholar 

  • Sun, W. B., Zhang, S. C., and Li, Y. Y. (2015). “Development application of solid-fluid coupling similar material for floor strata and simulation test of water-inrush in deep mining.” Chin J. Rock Mech Eng., Vol. 31, No. S1, pp. 2665–2670.

    Google Scholar 

  • Wang, L. G., Han, M., and Wang, Z. S. (2013). “Stress distribution and damage law of mining floor.” Journal of Mining & Safety Engineering, Vol. 30, No. 3, pp. 317–322.

    Google Scholar 

  • Wang, Z. Y. and Liu, H. Q. (1992). “Coal mining on confined water.” China Coal Industry Publishing House, Beijing, pp. 20–21.

    Google Scholar 

  • Wu, Q. (2014). “Progress, problems and prospects of prevention and control of mine water and reutilization in China.” J China Coal Soc, Vol. 39, No. 5, pp. 795–805, DOI: 10.13225/j.cnki.jccs.2014.0478.

    Google Scholar 

  • Wu, Q., Liu, Y. Z., and Liu, D. H. (2011). “Prediction of floor water inrush: The application of GIS-Based AHP vulnerable index method to Donghuantuo Coal Mine, China.” Rock Mech Rock Eng., Vol. 44, pp. 591–600, DOI: 10.1007/s00603-011-0146-5.

    Article  Google Scholar 

  • Wu, Q., Zhou, W., Wang, J., and Xie, S. (2009b). “Prediction of groundwater inrush into coal mines from aquifers underlying the coal seams in China: application of vulnerability index method to Zhangcun Coal Mine, China.” Environ Geol, Vol. 57, No. 5, pp. 1187–1195, DOI: 10.1007/s00254-008-1415-9.

    Article  Google Scholar 

  • Xu, Z. L. (2001). “Elastic mechanics.” Higher Education Press, Beijing, pp. 178–200.

    Google Scholar 

  • Yin, S. X., Zhang, J. C., and Liu, D. M. (2015). “A study of mine water inrushes by measurements of in situ stress and rock failures.” Nat Hazards, Vol. 79, pp. 1961–1979, DOI: 10.1007/s11069-015-1941-1.

    Article  Google Scholar 

  • Zhang, J. C. (2005) “Investigations of water inrushes from aquifers under coal seams.” Int. J. Rock Mech Min, Vol. 42, No. 3, pp. 350–360, DOI: 10.1016/j.ijrmms.2004.11.010.

    Article  Google Scholar 

  • Zhang, J. C., Zhang, Y. Z., and Liu, T. Q. (1997). “Seepage of rock mass and water inrush from coal seam floor.” Geological Publishing House, Beijing, pp.10–15.

    Google Scholar 

  • Zhang, L. M., Wang, Z. Q., and Sun, H. (2009). “Failure characteristics and constitutive model of rock under unloading condition.” J. China Coal Soc, Vol. 34, No. 12, pp. 1626–1630, DOI: 10.3321/j.issn:0253-9993.2009.12.008.

    Google Scholar 

  • Zheng, Y. R. and Kong, L. (2010). “Plastic mechanics of rock and soil.” China Building Industry Press, Beijing, pp. 36–52.

    Google Scholar 

  • Zhu, S. Y, Jiang, Z. Q., Zhou, K. J., Peng, G. Q., and Yang, C. W. (2014). “The characteristics of deformation and failure of coal seam floor due to mining in Xinmi coal field in China.” Bull Eng Geol Environ, Vol. 24, pp. 1151–1163, DOI: 10.1007/s10064-014-0612-x.

    Article  Google Scholar 

  • Zhu, S. Y., Jiang, Z. Q., and Hou, H. L. (2008). “Analytic method for strain on extracting seam floor at relatively fixed position and its application.” Mining Safety & Environment Protection, Vol. 35, No. 1, pp. 18–20.

    Google Scholar 

  • Zhu, S. Y., Jiang, Z. Q., and Yao, P. (2007). “Application of analytic method in calculating floor stress of a working face.” Journal of Mining & Safety Engineering, Vol. 24, No. 2, pp. 191–194, DOI: 10.3969/j.issn.1673-3363.2007.02.015.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, 221116, China

    Shiliang Liu

  2. School of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao, 266590, China

    Weitao Liu

  3. National Engineering Research Center of Coal Mine Water Hazard Controlling, China University of Mining and Technology (Beijing), Beijing, 100083, China

    Jianjun Shen

Authors
  1. Shiliang Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Weitao Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jianjun Shen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Weitao Liu.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Liu, S., Liu, W. & Shen, J. Stress evolution law and failure characteristics of mining floor rock mass above confined water. KSCE J Civ Eng 21, 2665–2672 (2017). https://doi.org/10.1007/s12205-017-1578-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12205-017-1578-6

Keywords

Search

Navigation